U.S. patent application number 13/511458 was filed with the patent office on 2012-09-20 for heat generating body box housing refrigeration device.
This patent application is currently assigned to PANASONIC CORPORATION. Invention is credited to Keisuke Koga, Mutsuhiko Matsumoto, Yuuji Nakano, Hiroshi Shibata, Keisuke Tsuji.
Application Number | 20120234034 13/511458 |
Document ID | / |
Family ID | 44066086 |
Filed Date | 2012-09-20 |
United States Patent
Application |
20120234034 |
Kind Code |
A1 |
Nakano; Yuuji ; et
al. |
September 20, 2012 |
HEAT GENERATING BODY BOX HOUSING REFRIGERATION DEVICE
Abstract
A heat generating body box housing refrigeration device includes
a first refrigerant cycle in which a first condenser and a first
evaporator are connected by a first refrigerant liquid pipe and a
first refrigerant steam pipe and a second refrigerant cycle in
which a second condenser and a second evaporator are connected by a
second refrigerant liquid pipe and a second refrigerant steam pipe.
The first refrigerant liquid pipe is connected between a first
joint and a second joint, the first refrigerant steam pipe is
connected between a third joint and a fourth joint, the second
refrigerant liquid pipe is connected between a fifth joint and a
sixth joint, and the second refrigerant steam pipe is connected
between a seventh joint and an eighth joint.
Inventors: |
Nakano; Yuuji; (Aichi,
JP) ; Shibata; Hiroshi; (Aichi, JP) ; Koga;
Keisuke; (Aichi, JP) ; Matsumoto; Mutsuhiko;
(Aichi, JP) ; Tsuji; Keisuke; (Aichi, JP) |
Assignee: |
PANASONIC CORPORATION
Osaka
JP
|
Family ID: |
44066086 |
Appl. No.: |
13/511458 |
Filed: |
November 19, 2010 |
PCT Filed: |
November 19, 2010 |
PCT NO: |
PCT/JP2010/006797 |
371 Date: |
May 23, 2012 |
Current U.S.
Class: |
62/335 |
Current CPC
Class: |
F28D 15/0266 20130101;
H05K 7/20681 20130101 |
Class at
Publication: |
62/335 |
International
Class: |
F25D 31/00 20060101
F25D031/00; F25B 39/04 20060101 F25B039/04; F25B 39/02 20060101
F25B039/02 |
Foreign Application Data
Date |
Code |
Application Number |
Nov 25, 2009 |
JP |
2009-267124 |
Nov 17, 2010 |
JP |
2010-256555 |
Claims
1. A heat generating body box housing refrigeration device that
refrigerates a heat generating body box housing accommodating a
heat generating body, comprising: a first condenser and a second
condenser that condense a refrigerant; a first evaporator and a
second evaporator that vaporize the refrigerant; and an outdoor
blower that sucks air outside of the heat generating body box
housing and blows the air to promote heat transfers of the first
condenser and the second condenser, wherein the first condenser and
the first evaporator are connected with a first refrigerant liquid
pipe and a first refrigerant steam pipe to constitute a first
refrigerant cycle, the second condenser and the second evaporator
are connected with a second refrigerant liquid pipe and a second
refrigerant steam pipe to constitute a second refrigerant cycle,
the first condenser of a rectangular shape includes a first
condenser steam header on an upper side and a first condenser
liquid header on a lower side, the first evaporator of a
rectangular shape includes a first evaporator steam header on an
upper side and a first evaporator liquid header on a lower side,
the second condenser of a rectangular shape includes a second
condenser steam header on an upper side and a second condenser
liquid header on a lower side, the second evaporator of a
rectangular shape includes a second evaporator steam header on an
upper side and a second evaporator liquid header on a lower side,
the first condenser, the second condenser, the first evaporator,
and the second evaporator are vertically disposed with distances
between one another, the first refrigerant liquid pipe is connected
between a first joint in one end portion of the first condenser
liquid header and a second joint in one end portion of the first
evaporator liquid header, the first refrigerant steam pipe is
connected between a third joint of the first condenser steam header
and a fourth joint of the first evaporator steam header, the third
joint located diagonally with respect to the first joint in the
first condenser, and the fourth joint located diagonally with
respect to the second joint in the first evaporator, the second
refrigerant liquid pipe is connected between a fifth joint of the
second condenser liquid header and a sixth joint of the second
evaporator liquid header, the fifth joint located in a position
facing another end portion different from that of the first joint,
and the sixth joint located in a position facing another end
portion different from that of the second joint, and the second
refrigerant steam pipe is connected between a seventh joint of the
second condenser steam header and an eighth joint of the second
evaporator steam header, the seventh joint located in a position
facing another end portion different from that of the third joint,
and the eighth joint located in a position facing another end
portion different from that of the fourth joint.
2. The heat generating body box housing refrigeration device
according to claim 1, wherein the first condenser and the second
condenser are inclined in an identical direction, and the first
evaporator and the second evaporator are inclined in an identical
direction.
3. The heat generating body box housing refrigeration device
according to claim 2, wherein in the first condenser and the second
condenser, a distance between the first condenser liquid header and
the second condenser liquid header is greater than a distance
between the first condenser steam header and the second condenser
steam header.
4. The heat generating body box housing refrigeration device
according to claim 1 further comprising a guide plate provided in
parallel to a direction of air flow produced by the outdoor blower
in a manner to extend to the windward side from any of the first
condenser liquid header and the second condenser liquid header for
guiding the air flow.
5. The heat generating body box housing refrigeration device
according to claim 1 further comprising: a partition plate provided
between the first condenser and the second condenser and the first
evaporator and the second evaporator, the first condenser and the
second condenser are disposed above the partition plate; and a
sealing component having an inclination provided between the
partition plate and one of the first condenser and the second
condenser located closer to the partition plate.
6. The heat generating body box housing refrigeration device
according to claim 5 further comprising a heat exchanger plate
provided on each of upper and lower surfaces of the partition plate
in an orientation parallel to an air flow produced by the outdoor
blower.
7. The heat generating body box housing refrigeration device
according to claim 6, wherein the first condenser, the second
condenser, the first evaporator and the second evaporator are fixed
to the heat exchanger plate.
8. The heat generating body box housing refrigeration device
according to claim 5, wherein the partition plate is formed into a
saw-tooth shape when viewed from a direction of an air flow
generated by the outdoor blower.
9. The heat generating body box housing refrigeration device
according to claim 1, wherein the first joint, the second joint,
the third joint, the fourth joint, the fifth joint, the sixth
joint, the seventh joint and the eighth joint have a curved
shape.
10. The heat generating body box housing refrigeration device
according to claim 1 further comprising a third refrigerant
cycle.
11. A heat generating body box housing refrigeration device
comprising: a first condenser and a second condenser that condense
a refrigerant; a first evaporator and a second evaporator that
vaporize the refrigerant; an indoor blower that blows air in a heat
generating body box housing to promote heat transfer of the first
evaporator and the second evaporator; and an outdoor blower that
sucks air outside of the heat generating body box housing and blows
the air to promote heat transfer of the first condenser and the
second condenser, wherein the first condenser and the first
evaporator are connected with a first refrigerant liquid pipe and a
first refrigerant steam pipe to constitute a first refrigerant
cycle, the second condenser and the second evaporator are connected
with a second refrigerant liquid pipe and a second refrigerant
steam pipe to constitute a second refrigerant cycle, the first
condenser of a rectangular shape includes a first condenser steam
header on an upper side and a first condenser liquid header on a
lower side, the first evaporator of a rectangular shape includes a
first evaporator steam header on an upper side and a first
evaporator liquid header on a lower side, the second condenser of a
rectangular shape includes a second condenser steam header on an
upper side and a second condenser liquid header on a lower side,
the second evaporator of a rectangular shape includes a second
evaporator steam header on an upper side and a second evaporator
liquid header on a lower side the first condenser, the first
condenser liquid header and the second condenser liquid header and
the first evaporator liquid header and the second evaporator liquid
header are vertically disposed with distances provided from one
another, a vertical plane including the first condenser liquid
header is orthogonal to a vertical plane including the first
evaporator liquid header, the first refrigerant liquid pipe is
connected to one end portion of the first condenser liquid header
and one end portion of the first evaporator liquid header, the
second refrigerant liquid pipe is connected to an end portion of
the second condenser liquid header opposite to another end portion
facing the one end portion of the first condenser liquid header and
an end portion of the second evaporator liquid header opposite to
another end portion facing the one end portion of the first
evaporator liquid header, the first refrigerant steam pipe is
connected to one end portion of the first condenser steam header
and one end portion of the first evaporator steam header, and the
second refrigerant steam pipe is connected to an end portion of the
second condenser steam header opposite to another end portion
facing the one end portion of the first condenser liquid header and
an end portion of the second evaporator steam header opposite to
another end portion facing the one end portion of the first
evaporator steam header.
Description
TECHNICAL FIELD
[0001] The present invention relates to a heat generating body box
housing refrigeration device.
BACKGROUND ART
[0002] A heat generating body box housing a refrigeration device is
used to refrigerate the inside of a box housing, such as a
mobile-phone base station, which is closed while provided with an
electronic component generating heat therein.
[0003] Recently a heat generation amount from a control board
markedly increases with enhanced performance of the electronic
component and with greater densities of the electronic components
on the control board. With the progress of miniaturization of the
box housing for the electronic components, there is a demand for
the high performance and miniaturization of the refrigeration
device and enhancement of a degree of freedom of a layout that the
refrigeration device is installed in either a side surface or a top
side of the box housing. For this reason, a method in which a heat
pipe having a large heat transfer amount is used while the number
of components decreases is well known as a method for refrigerating
a refrigeration device (for example, PTL 1).
[0004] However, in the heat pipe, refrigerant steam that ascends by
boiling and vaporization and refrigerant liquid that descends by
condensation and devolatilization move in the same pipe. Therefore,
the refrigerants face each other to disadvantageously degrade
refrigerant circulation efficiency and heat exchange efficiency.
For this reason, an evaporator that boils and vaporizes the
refrigerant is separated from a condenser that condenses and
devolatilizes the refrigerant. That is, a refrigerant steam pipe
that communicates between the evaporator and the condenser is
provided in order that the refrigerant boiled and vaporized by the
evaporator moves to the condenser. A refrigerant liquid pipe that
communicates between the condenser and the evaporator is also
provided in order that the refrigerant condensed and devolatilized
by the condenser moves to the evaporator. Specifically, there is
well known a boiling refrigeration device, in which a refrigerant
circuit is formed by the refrigerant steam pipe and the refrigerant
liquid pipe and the refrigerant is circulated to efficiently
release heat (for example, PTL 2).
[0005] The boiling refrigeration device as the heat generating body
box housing refrigeration device of the background art will be
described below with reference to FIGS. 20A and 20B. FIG. 20A is a
front view illustrating the heat generating body box housing
refrigeration device of the background art, and FIG. 20B is a side
view illustrating the heat generating body box housing
refrigeration device.
[0006] Boiling refrigeration device 201 is provided in main body
box 207, and main body box 207 is partitioned by partition plate
206 to include a high-temperature portion 203 to which
high-temperature air 202 vents located in a lower portion of main
body box 207 and a low-temperature portion 205 to which
low-temperature air 204 vents in an upper portion of main body box
207. Evaporator 209 in which refrigerant 208 is enclosed is
disposed in high-temperature portion 203. Evaporator 209 receives
the heat from high-temperature air 202 to boil and vaporize
refrigerant 208.
[0007] Condenser 210 communicating with evaporator 209 is disposed
in low-temperature portion 205. In condenser 210, refrigerant 208
boiled and vaporized by evaporator 209 releases the heat to
low-temperature air 204, and refrigerant 208 is condensed and
devolatilized. Evaporator 209 and condenser 210 communicate with
each other by refrigerant steam pipe 211 and refrigerant liquid
pipe 212, which pierce the partition plate 206.
[0008] Indoor-side blower 213 that blows high-temperature air 202
to high-temperature portion 203 and outdoor-side blower 214 that
blows low-temperature air 204 to low-temperature portion 205 are
also included. According to the above configuration, refrigerant
208 boiled and vaporized by evaporator 209 moves from evaporator
209 to condenser 210 through refrigerant steam pipe 211 by a
density difference. Refrigerant 208 condensed and devolatilized by
condenser 210 moves from condenser 210 to evaporator 209 through
refrigerant liquid pipe 212 by the density difference. Therefore,
refrigerant 208 naturally circulates to release the heat of
high-temperature air 202 to low-temperature air 204.
[0009] In the heat generating body box housing refrigeration device
of the background art, in order to efficiently exert capabilities
of condenser 210 and evaporator 209, refrigerant steam pipe 211 and
refrigerant liquid pipe 212 are diagonally provided such that the
refrigerant evenly circulates to the whole surfaces of condenser
210 and evaporator 209. However, a circulation resistance increases
with increasing distance from a point at which refrigerant steam
pipe 211 of a header in an upper portion of evaporator 209 is
connected toward an opposite corner portion in which the steam pipe
is not connected. As a result, unfortunately the refrigerant
circulation efficiency is degraded to decrease the heat exchange
efficiency.
CITATION LISTS
Patent Literatures
[0010] PTL 1: Unexamined Japanese Patent Publication No. S60-113498
[0011] PTL 2: Unexamined Japanese Patent Publication No.
119-326582
SUMMARY OF THE INVENTION
[0012] A heat generating body box housing refrigeration device of
the present invention that refrigerates a heat generating body box
housing accommodating a heat generating body includes: a first
condenser and a second condenser that condense a refrigerant; a
first evaporator and a second evaporator that vaporize the
refrigerant; and an outdoor blower that sucks air outside of the
heat generating body box housing and blows the air to promote heat
transfers of the first condenser and the second condenser, wherein
the first condenser and the first evaporator are connected with a
first refrigerant liquid pipe and a first refrigerant steam pipe to
constitute a first refrigerant cycle, the second condenser and the
second evaporator are connected with a second refrigerant liquid
pipe and a second refrigerant steam pipe to constitute a second
refrigerant cycle, the first condenser of a rectangular shape
includes a first condenser steam header on an upper side and a
first condenser liquid header on a lower side, the first evaporator
of a rectangular shape includes a first evaporator steam header on
an upper side and a first evaporator liquid header on a lower side,
the second condenser of a rectangular shape includes a second
condenser steam header on an upper side and a second condenser
liquid header on a lower side, the second evaporator of a
rectangular shape includes a second evaporator steam header on an
upper side and a second evaporator liquid header on a lower side,
the first condenser, the second condenser, the first evaporator,
and the second evaporator are vertically disposed with distances
provided from one another, the first refrigerant liquid pipe is
connected between a first joint in one end portion of the first
condenser liquid header and a second joint in one end portion of
the first evaporator liquid header, the first refrigerant steam
pipe is connected between a third joint of the first condenser
steam header and a fourth joint of the first evaporator steam
header, the third joint located diagonally with respect to the
first joint in the first condenser, and, the fourth joint located
diagonally with respect to the second joint in the first
evaporator, the second refrigerant liquid pipe is connected between
a fifth joint of the second condenser liquid header and a sixth
joint of the second evaporator liquid header, the fifth joint
located in a position facing another end portion different from
that of the first joint, and the sixth joint located in a position
facing another end portion different from that of the second joint,
and the second refrigerant steam pipe is connected between a
seventh joint of the second condenser liquid header and an eighth
joint of the second evaporator liquid header, the seventh joint
located in a position facing another end portion different from
that of the third joint, and the eighth joint located in a position
facing another end portion different from that of the fourth
joint.
[0013] According to the above configuration, in the first
refrigerant cycle and the second refrigerant cycle, the refrigerant
circulation efficiency is degraded with increasing distance toward
the end portion in which the steam pipe is not connected in the
opposite direction to the point at which the steam pipe is
connected in the upper portion of the evaporator, and the portion
in which the heat exchange efficiency is degraded becomes the
opposite direction to the direction of the refrigerant circulation
efficiency. As a result, the heat generating body box housing
refrigeration device in which the capability degradation of the
heat exchange efficiency and refrigerant circulation efficiency can
be compensated to improve the heat exchange efficiency can be
obtained.
BRIEF DESCRIPTION OF DRAWINGS
[0014] FIG. 1 is a side view illustrating a heat generating body
box housing refrigeration device of a first exemplary embodiment of
the present invention.
[0015] FIG. 2 is a perspective view illustrating a lower back
surface of the heat generating body box housing refrigeration
device.
[0016] FIG. 3 is a perspective view illustrating an upper front
surface of the heat generating body box housing refrigeration
device.
[0017] FIG. 4 is an explanatory view illustrating refrigerant
circulations of a first refrigerant cycle and a second refrigerant
cycle in the heat generating body box housing refrigeration
device.
[0018] FIG. 5 is a sectional side view schematically illustrating a
heat generating body box housing refrigeration device of a second
exemplary embodiment of the present invention.
[0019] FIG. 6 is a sectional side view schematically illustrating a
heat generating body box housing refrigeration device of a third
exemplary embodiment of the present invention.
[0020] FIG. 7 is a sectional side view schematically illustrating a
heat generating body box housing refrigeration device of a fourth
exemplary embodiment of the present invention.
[0021] FIG. 8 is a sectional side view schematically illustrating a
heat generating body box housing refrigeration device of a fifth
exemplary embodiment of the present invention.
[0022] FIG. 9 is a sectional side view schematically illustrating a
heat generating body box housing refrigeration device of a sixth
exemplary embodiment of the present invention.
[0023] FIG. 10 is a sectional side view schematically illustrating
a heat generating body box housing refrigeration device of a
seventh exemplary embodiment of the present invention.
[0024] FIG. 11 is a front view illustrating a heat generating body
box housing refrigeration device of an eighth exemplary embodiment
of the present invention.
[0025] FIG. 12 is a sectional side view schematically illustrating
a heat generating body box housing refrigeration device of a ninth
exemplary embodiment of the present invention.
[0026] FIG. 13A is a horizontal sectional view schematically
illustrating a condenser side of a heat generating body box housing
refrigeration device of a tenth exemplary embodiment of the present
invention.
[0027] FIG. 13B is a sectional side view schematically illustrating
the heat generating body box housing refrigeration device.
[0028] FIG. 14 is a perspective view illustrating a front surface
of the heat generating body box housing refrigeration device.
[0029] FIG. 15 is a perspective view illustrating a back surface of
the heat generating body box housing refrigeration device.
[0030] FIG. 16 is an explanatory view illustrating a liquid pipe
partition hole piercing position portion of the heat generating
body box housing refrigeration device.
[0031] FIG. 17 is an explanatory view illustrating a position of a
steam pipe partition hole piercing portion of the heat generating
body box housing refrigeration device.
[0032] FIG. 18 is an explanatory view illustrating a gradient of a
refrigerant liquid pipe of the heat generating body box housing
refrigeration device.
[0033] FIG. 19 is an explanatory view illustrating a gradient of a
refrigerant steam pipe of the heat generating body box housing
refrigeration device.
[0034] FIG. 20A is a front view illustrating a heat generating body
box housing refrigeration device of the background art.
[0035] FIG. 20B is a side view illustrating the heat generating
body box housing refrigeration device.
DESCRIPTION OF EMBODIMENTS
[0036] Hereinafter, exemplary embodiments of the present invention
will be described with reference to the drawings.
First Exemplary Embodiment
[0037] FIG. 1 is a side view illustrating a heat generating body
box housing refrigeration device of a first exemplary embodiment of
the present invention. As illustrated in FIG. 1, for example, heat
generating body box housing refrigeration device 1 includes an
electronic component generating heat like a mobile-phone base
station, and heat generating body box housing refrigeration device
1 is installed above and below a top side (partition plate 9) of
closed heat generating body box housing 2. In heat generating body
box housing refrigeration device 1, indoor blower 3 and outdoor
blower 4 blow air such that high-temperature air 5 and
low-temperature air 6 flow in opposite directions to each
other.
[0038] FIG. 2 is a perspective view illustrating a lower back
surface of heat generating body box housing refrigeration device of
the first exemplary embodiment of the present invention. As
illustrated in FIGS. 1 and 2, heat generating body box housing
refrigeration device 1 is disposed in main body box 10 such that
high-temperature portion 7 in which high-temperature air 5 vents is
located in a lower portion of partition plate 9 and such that
low-temperature portion 8 in which low-temperature air 6 vents is
located in an upper portion of partition plate 9.
[0039] Rectangular first evaporator 14 is disposed in
high-temperature portion 7, and includes first evaporator steam
header 11 on an upper side and first evaporator liquid header 12 on
a lower side. First evaporator 14 is disposed while inclined
backward (or forward) with respect to a vent direction of indoor
blower 3. Refrigerant 13 (for example, R134a) is enclosed in first
evaporator 14, and refrigerant 13 receives the heat from
high-temperature air 5 and is boiled and vaporized.
[0040] Similarly, rectangular second evaporator 17 is disposed in
high-temperature portion 7, and includes second evaporator steam
header 15 on the upper side and second evaporator liquid header 16
on the lower side. Second evaporator 17 is disposed below first
evaporator 14 while inclined in the same direction as first
evaporator 14. Refrigerant 13 (for example, R134a) is enclosed in
second evaporator 17, and refrigerant 13 receives the heat from
high-temperature air 5 and is boiled and vaporized.
[0041] Rectangular first condenser 20 is disposed in
low-temperature portion 8, and includes first condenser steam
header 18 on the upper side and first condenser liquid header 19 on
the lower side. First condenser 20 is communicated with first
evaporator 14, and first condenser 20 is disposed while inclined in
the same direction as first evaporator 14. First condenser 20
condenses and devolatilizes a steam of boiled and vaporized
refrigerant 13 by releasing the heat of the steam of refrigerant 13
to low-temperature air 6. Similarly, rectangular second condenser
23 is disposed in low-temperature portion 8, and includes second
condenser steam header 21 on the upper side and second condenser
liquid header 22 on the lower side. Second condenser 23 is
communicated with second evaporator 17, and second condenser 23 is
disposed below first condenser 20 while inclined in the same
direction as first condenser 20. Second condenser 23 condenses and
devolatilizes a steam of boiled and vaporized refrigerant 13 by
releasing the heat of the steam of refrigerant 13 to
low-temperature air 6. At this point, first condenser 20, second
condenser 23, first evaporator 14, and second evaporator 17 are
vertically disposed in parallel with distances provided from one
another.
[0042] First refrigerant steam pipe 24 is connected to a right or
left end portion of each of first evaporator steam header 11 and
first condenser steam header 18 while piercing partition plate 9,
whereby first refrigerant steam pipe 24 communicates between first
evaporator steam header 11 and first condenser steam header 18.
Similarly, second refrigerant steam pipe 25 is connected to end
portions of second evaporator steam header 15 and second condenser
steam header 21 while piercing partition plate 9, whereby second
refrigerant steam pipe 25 communicates between second evaporator
steam header 15 and second condenser steam header 21.
[0043] FIG. 3 is a perspective view illustrating an upper front
surface of the heat generating body box housing refrigeration
device of the first exemplary embodiment of the present invention.
First refrigerant liquid pipe 26 communicates between first
evaporator liquid header 12 and first condenser liquid header 19
while piercing partition plate 9. First refrigerant liquid pipe 26
is diagonally connected with respect to first refrigerant steam
pipe 24. Similarly, second refrigerant liquid pipe 27 communicates
between second evaporator liquid header 16 and second condenser
liquid header 22 while piercing partition plate 9. Second
refrigerant liquid pipe 27 is diagonally connected with respect to
second refrigerant steam pipe 25.
[0044] That is, in FIGS. 2 and 3, first refrigerant liquid pipe 26
is connected between first joint 41 in one end portion of first
condenser liquid header 19 and second joint 42 in one end portion
of first evaporator liquid header 12. First refrigerant steam pipe
24 is connected between third joint 43 of first condenser steam
header 18 and fourth joint 44 of first evaporator steam header 11,
which is diagonally located with respect to first joint 41 in first
condenser 20, and fourth joint 44 which is located with respect to
second joint 42 in first evaporator 14.
[0045] Second refrigerant liquid pipe 27 is connected between fifth
joint 45 of second condenser liquid header 22 and sixth joint 46 of
second evaporator liquid header 16, fifth joint 45 which is located
in a position facing another end portion different from that of
first joint 41, and sixth joint 46 which is located in a position
facing another end portion different from that of second joint 42.
Second refrigerant steam pipe 25 is connected between seventh joint
47 of second condenser liquid header 22 and eighth joint 48 of
second evaporator liquid header 16, seventh joint 47 which is
located in a position facing another end portion different from
that of third joint 43, and eighth joint 48 which is located in a
position facing another end portion different from that of fourth
joint 44.
[0046] As illustrated in FIG. 1, heat generating body box housing
refrigeration device 1 includes first refrigerant cycle 28
indicated by a dotted line and second refrigerant cycle 29
indicated by an alternate long and short dash line. First
refrigerant cycle 28 is constructed such that first condenser 20
and first evaporator 14 are connected by first refrigerant liquid
pipe 26 and first refrigerant steam pipe 24 in FIGS. 2 and 3.
Second refrigerant cycle 29 is constructed such that second
condenser 23 and second evaporator 17 are connected by second
refrigerant liquid pipe 27 and second refrigerant steam pipe
25.
[0047] Thus, heat generating body box housing refrigeration device
1 of the first exemplary embodiment of the present invention
includes first condenser 20 and second condenser 23 that condense
the refrigerant and first evaporator 14 and second evaporator 17
that vaporize the refrigerant. Heat generating body box housing
refrigeration device 1 also includes outdoor blower 4 that sucks
air outside of heat generating body box housing 2 to promote heat
transfers of first condenser 20 and second condenser 23.
[0048] FIG. 4 is an explanatory view illustrating refrigerant
circulations of a first refrigerant cycle and a second refrigerant
cycle in the heat generating body box housing refrigeration device
of the first exemplary embodiment of the present invention. As
illustrated in FIG. 4, in first refrigerant cycle 28, refrigerant
circulation efficiency becomes better on the side of first
refrigerant steam pipe 24 of first evaporator 14. On the other
hand, on the opposite side to first refrigerant steam pipe 24, the
steam is hardly discharged, the circulation efficiency decreases to
become high temperature, thereby decreasing heat exchange
efficiency.
[0049] In second refrigerant cycle 29 that becomes a symmetric
cycle, the refrigerant circulation efficiency becomes better on the
side of second refrigerant steam pipe 25 of second evaporator 17.
On the opposite side to first refrigerant steam pipe 24, the steam
is hardly discharged, the circulation efficiency decreases to
become high temperature, thereby decreasing the heat exchange
efficiency. That is, heat generating body box housing refrigeration
device 1 is used while the efficient portion of first refrigerant
cycle 28 and the inefficient portion of second refrigerant cycle 29
overlap the inefficient portion of first refrigerant cycle 28 and
the efficient portion of second refrigerant cycle 29. As a result,
the decreased capabilities of first refrigerant cycle 28 and second
refrigerant cycle 29 can be compensated to obtain heat generating
body box housing refrigeration device 1 in which the heat exchange
efficiency is enhanced.
[0050] First condenser 20 and second condenser 23, and first
evaporator 14 and second evaporator 17 are inclined in the same
directions. As a result, an installation space can vertically be
reduced to facilitate the connections of first refrigerant liquid
pipe 26, second refrigerant liquid pipe 27, first refrigerant steam
pipe 24, and second refrigerant steam pipe 25.
[0051] As illustrated in FIG. 1, in heat generating body box
housing refrigeration device 1 of the first exemplary embodiment of
the present invention, the plural condensers and evaporators are
connected by liquid pipes and the steam pipes from the lower stage.
In lower-stage second refrigerant cycle 29, second evaporator 17
has an advantage to the refrigerant vaporization because
high-temperature air 5 directly vents through second evaporator 17.
However, second condenser 23 has a disadvantage to the refrigerant
condensation because second condenser 23 is refrigerated using
low-temperature air 6 that passes through first condenser 20 to
raise temperature.
[0052] In an upper-stage first refrigerant cycle 28, first
evaporator 14 has the disadvantage to the refrigerant vaporization
because first evaporator 14 is heated by high-temperature air 5
that passes through second evaporator 17 to lower the temperature.
On the other hand, first condenser 20 has the advantage to the
refrigerant condensation because low-temperature air 6 directly
vents to first condenser 20.
[0053] Thus, a bias of the capability of each cycle is eliminated,
whereby the capabilities of the evaporator and condenser are hardly
saturated or stop of the cycle is hardly generated. As a result,
the heat generating body box housing refrigeration device of the
first exemplary embodiment of the present invention is
stabilized.
Second Exemplary Embodiment
[0054] In a heat generating body box housing refrigeration device
according to a second exemplary embodiment of the present
invention, the same structural element as the first exemplary
embodiment is designated by the same reference mark, and its
detailed description is omitted.
[0055] FIG. 5 is a sectional side view schematically illustrating
the heat generating body box housing refrigeration device of the
second exemplary embodiment of the present invention. As
illustrated in FIG. 5, third refrigerant cycle 30 that is identical
to first refrigerant cycle 28 and second refrigerant cycle 29 is
provided in a position in which first refrigerant cycle 28 and
second refrigerant cycle 29 are shifted in parallel. The three
refrigerant cycles are provided in the heat generating body box
housing refrigeration device of the second exemplary embodiment of
the present invention.
[0056] As a result, because the heat generating body box housing
refrigeration device can further ensure the refrigeration
capability of heat exchange treatment performed by third
refrigerant cycle 30, it is not necessary to enlarge horizontal and
vertical dimensions of the evaporators and condensers of first
refrigerant cycle 28 and second refrigerant cycle 29. The
capability can flexibly be changed as needed basis while the
dimensions are not changed by adjusting the number of refrigerant
cycles.
Third Exemplary Embodiment
[0057] In a heat generating body box housing refrigeration device
according to a third exemplary embodiment of the present invention,
the same structural element as the first exemplary embodiment is
designated by the same reference mark, and its detailed description
is omitted.
[0058] FIG. 6 is a sectional side view schematically illustrating
the heat generating body box housing refrigeration device of the
third exemplary embodiment of the present invention. As illustrated
in FIG. 6, in first condenser 20 and second condenser 23 that are
adjacent to each other, first condenser liquid header 19 and second
condenser liquid header 22 are separated from each other while
first condenser steam header 18 and second condenser steam header
21 are brought close to each other. That is, in first condenser 20
and second condenser 23, a distance between first condenser liquid
header 19 and second condenser liquid header 22 is greater than a
distance between first condenser steam header 18 and second
condenser steam header 21.
[0059] Therefore, a proportion of a vent amount of low-temperature
air 6, which directly vents to second condenser 23 without passing
through first condenser 20, increases. As a result, the temperature
of the air entering second condenser 23 is raised to ensure a
temperature difference of the air before and after the air passes
through second condenser 23, so that the heat generating body box
housing refrigeration device that can enhance the refrigeration
capability of second condenser 23 is obtained.
Fourth Exemplary Embodiment
[0060] In a heat generating body box housing refrigeration device
according to a fourth exemplary embodiment of the present
invention, the same structural element as the first exemplary
embodiment is designated by the same reference mark, and its
detailed description is omitted.
[0061] FIG. 7 is a sectional side view schematically illustrating
the heat generating body box housing refrigeration device of the
fourth exemplary embodiment of the present invention. As
illustrated in FIG. 7, in first condenser 20 and second condenser
23 that are disposed in parallel at a distance, guide plates 31 and
32 are provided in first condenser liquid header 19 and second
condenser liquid header 22 so as to be parallel to an air flow
(low-temperature air 6) generated by outdoor blower 4 in FIG.
1.
[0062] Guide plates 31 and 32 facilitate the ventilation of
low-temperature air 6 to second condenser 23 disposed in the lower
stage. As a result, the heat exchange performance is improved in
the heat generating body box housing refrigeration device of the
fourth exemplary embodiment of the present invention.
Fifth Exemplary Embodiment
[0063] In a heat generating body box housing refrigeration device
according to a fifth exemplary embodiment of the present invention,
the same structural element as the first exemplary embodiment is
designated by the same reference mark, and its detailed description
is omitted.
[0064] FIG. 8 is a sectional side view schematically illustrating
the heat generating body box housing refrigeration device of the
fifth exemplary embodiment of the present invention. As illustrated
in FIG. 8, sealing component 33 that seals a gap between partition
plate 9 and second condenser liquid header 22 is formed into an
inclination shape so as to be substantially parallel to second
condenser 23. That is, sealing component 33 having the inclination
provided between partition plate 9 and one of first condenser 20
and second condenser 23, which is located closer to partition plate
9.
[0065] According to the above configuration, sealing component 33
guides a wind to a gap between first condenser 20 and second
condenser 23, which are disposed in parallel at a distance, so that
the ventilation of low-temperature air 6 is easily performed to
lower-stage second condenser 23 while an original sealing function
is secured. As a result, the heat exchange performance is improved
in the heat generating body box housing refrigeration device of the
fifth exemplary embodiment of the present invention.
Sixth Exemplary Embodiment
[0066] In a heat generating body box housing refrigeration device
according to a sixth exemplary embodiment of the present invention,
the same structural element as the first exemplary embodiment is
designated by the same reference mark, and its detailed description
is omitted.
[0067] FIG. 9 is a sectional side view schematically illustrating
the heat generating body box housing refrigeration device of the
sixth exemplary embodiment of the present invention. As illustrated
in FIG. 9, heat exchanger plate 34 and heat exchanger plate 35 are
provided in upper and lower surfaces of partition plate 9 so as to
be parallel to the air flow (low-temperature air 6) generated by
outdoor blower 4 in FIG. 1. For example, heat exchanger plate 34
and heat exchanger plate 35 are formed into an L-shape, and heat
exchanger plate 34 and heat exchanger plate 35 are fixed by
screwing surfaces that are in contact with partition plate 9.
[0068] According to the above configuration, the heat is released
in heat exchanger plate 34 provided on the upper side of partition
plate 9, and the heat is absorbed from high-temperature air 5 that
already passes through second evaporator 17 in heat exchanger plate
35 provided on the lower side of partition plate 9, and heat
exchange is performed by a heat sink effect. Therefore, the heat
exchange capability is enhanced in the heat generating body box
housing refrigeration device of the sixth exemplary embodiment of
the present invention.
Seventh Exemplary Embodiment
[0069] In a heat generating body box housing refrigeration device
according to a seventh exemplary embodiment of the present
invention, the same structural element as the first exemplary
embodiment is designated by the same reference mark, and its
detailed description is omitted.
[0070] FIG. 10 is a sectional side view schematically illustrating
the heat generating body box housing refrigeration device of the
seventh exemplary embodiment of the present invention. As
illustrated in FIG. 10, first condenser 20 and second condenser 23
are fixed to each other by heat exchanger plate 36, and first
evaporator 14 and second evaporator 17 are fixed to each other by
heat exchanger plate 37. Heat exchanger plate 36 and heat exchanger
plate 37 are fixed to the condenser and the evaporator so as to
support side surfaces of vent surfaces of the condenser and the
evaporator, and heat exchanger plate 36 and heat exchanger plate 37
are fixed to partition plate 9 by screws such that fixing portions
of partition plate 9 is bent into the L-shape.
[0071] As a result, the heat received from partition plate 9 is
released in heat exchanger plate 36, and the heat received from
high-temperature air 5 is transferred to partition plate 9 in heat
exchanger plate 37. Therefore, in the heat generating body box
housing refrigeration device of the seventh exemplary embodiment of
the present invention, the heat exchange capability is enhanced and
strength is further increased.
Eighth Exemplary Embodiment
[0072] In a heat generating body box housing refrigeration device
according to an eighth exemplary embodiment of the present
invention, the same structural element as the first exemplary
embodiment is designated by the same reference mark, and its
detailed description is omitted.
[0073] FIG. 11 is a front view illustrating the heat generating
body box housing refrigeration device of the eighth exemplary
embodiment of the present invention. As illustrated in FIG. 11,
partition plate 9 has saw-tooth shape 38 when viewed from a
direction of the air flow generated by outdoor blower 4 in FIG. 1.
That is, partition plate 9 has a pleated shape in which a peak and
a valley are made in the air-flow direction.
[0074] As a result, in the heat generating body box housing
refrigeration device of the eighth exemplary embodiment of the
present invention, because a surface area of partition plate 9 is
enlarged to increase heat-releasing and heat-absorbing area, the
heat exchange performance of partition plate 9 is improved.
Ninth Exemplary Embodiment
[0075] In a heat generating body box housing refrigeration device
according to a ninth exemplary embodiment of the present invention,
the same structural element as the first exemplary embodiment is
designated by the same reference mark, and its detailed description
is omitted.
[0076] FIG. 12 is a sectional side view schematically illustrating
the heat generating body box housing refrigeration device of the
ninth exemplary embodiment of the present invention. As illustrated
in FIG. 12, shapes of first refrigerant liquid pipe 26 and second
refrigerant liquid pipe 27 and shapes of first refrigerant steam
pipe 24 and second refrigerant steam pipe 25 have curved portions
39 at joints of first condenser 20, second condenser 23, first
evaporator 14, and second evaporator 17. That is, first joint 41,
second joint 42, third joint 43, fourth joint 44, fifth joint 45,
sixth joint 46, seventh joint 47, and eighth joint 48 have the
curved shapes.
[0077] As a result, in the heat generating body box housing
refrigeration device of the ninth exemplary embodiment of the
present invention, an impact such as an earthquake is absorbed by
curved portion 39 to disperse the impact on the piping joint, so
that a breakage of the piping joint and a gas leak can be
prevented.
Tenth Exemplary Embodiment
[0078] In the first to ninth exemplary embodiments, the rectangular
surface of the condenser and the rectangular surface of the
evaporator are disposed in the same direction. However, sometimes
the condenser and the evaporator are disposed orthogonal to each
other, namely, sometimes the condenser and the evaporator are
disposed such that planes including the rectangular surfaces of the
condenser and evaporator are orthogonal to each other. In this
case, a difference in length is generated between the refrigerant
liquid pipe and the refrigerant steam pipe of the two refrigerant
cycles, and sometimes the performance of one of the refrigerant
cycles is significantly degraded.
[0079] FIG. 13A is a horizontal sectional view schematically
illustrating a condenser side of a heat generating body box housing
refrigeration device according to a tenth exemplary embodiment of
the present invention, and FIG. 13B is a sectional side view
schematically illustrating the heat generating body box housing
refrigeration device.
[0080] For example, heat generating body box housing refrigeration
device 101 includes the electronic component generating the heat
like the mobile-phone base station, and heat generating body box
housing refrigeration device 101 is installed above and below a top
side (partition plate 109) of closed heat generating body box
housing 102. High-temperature air 105 passes through evaporator 160
by internal air blower 103. Low-temperature air 106 passes through
condenser 150 by external air blower 104. Main body box 110 is
partitioned by partition plate 109 such that high-temperature
portion 107 to which high-temperature air 105 vents is located in a
lower portion of partition plate 109 and such that low-temperature
portion 108 to which low-temperature air 106 vents is located in an
upper portion of partition plate 109.
[0081] FIG. 14 is a perspective view illustrating a front surface
of the heat generating body box housing refrigeration device of the
tenth exemplary embodiment of the present invention, and FIG. 15 is
a perspective view illustrating a back surface of the heat
generating body box housing refrigeration device. As illustrated in
FIGS. 13A, 13B, 14 and 15, condenser 150 includes first condenser
120 and second condenser 123. Evaporator 160 includes first
evaporator 114 and second evaporator 117.
[0082] Rectangular first evaporator 114 is disposed in
high-temperature portion 107 in FIG. 13A, and includes first
evaporator steam header 111 on the upper side and first evaporator
liquid header 112 on the lower side. First evaporator 114 is
disposed while inclined backward (or forward) with respect to a
vent direction of high-temperature air 105, refrigerant 113 (for
example, R134a) is enclosed in first evaporator 114, and
refrigerant 113 receives the heat from high-temperature air 105 and
is boiled and vaporized. Similarly, rectangular second evaporator
117 is disposed in high-temperature portion 107, and includes
second evaporator steam header 115 on the upper side and second
evaporator liquid header 116 on the lower side. Second evaporator
117 is disposed above first evaporator 114 while inclined in the
same direction as first evaporator 114, refrigerant 113 (for
example, R134a) is enclosed in second evaporator 117, and
refrigerant 113 receives the heat from high-temperature air 105 and
is boiled and vaporized.
[0083] Rectangular first condenser 120 is disposed in
low-temperature portion 108 in FIG. 13A, and includes first
condenser steam header 118 on the upper side and first condenser
liquid header 119 on the lower side. First condenser 120 is
communicated with first evaporator 114, and first condenser 120 is
disposed while inclined orthogonal to the inclination direction of
first evaporator 114. First condenser 120 condenses and
devolatilizes the steam of boiled and vaporized refrigerant 113 by
releasing the heat of the steam of refrigerant 113 to
low-temperature air 106. Similarly, rectangular second condenser
123 is disposed in low-temperature portion 108, and includes second
condenser steam header 121 on the upper side and second condenser
liquid header 122 on the lower side. Second condenser 123 is
communicated with second evaporator 117, and second condenser 123
is disposed above first condenser 120 while inclined orthogonal to
the inclination direction of second evaporator 117. Second
condenser 123 condenses and devolatilizes the steam of boiled and
vaporized refrigerant 113 by releasing the heat of the steam of
refrigerant 113 to low-temperature air 106.
[0084] First refrigerant steam pipe 124 communicates between first
evaporator steam header 111 and first condenser steam header 118
while piercing partition plate 109. First steam connecting port A
124a and first steam connecting port B 124b are provided in one end
portions of first condenser steam header 118 and first evaporator
steam header 111, respectively.
[0085] Similarly, second refrigerant steam pipe 125 communicates
between second evaporator steam header 115 and second condenser
steam header 121 while piercing partition plate 109. In second
evaporator steam header 115, second steam connecting port B 125b is
provided in an end portion on the opposite side to first steam
connecting port B 124b. In second condenser steam header 121,
second steam connecting port A 125a is provided in an end portion
on the opposite side to first steam connecting port A 124a. Second
refrigerant steam pipe 125 connects second steam connecting port A
125a and second steam connecting port B 125b. Further, first
refrigerant steam pipe 124 and second refrigerant steam pipe 125
are configured to have the substantially same length.
[0086] First refrigerant liquid pipe 126 communicates between first
evaporator liquid header 112 and first condenser liquid header 119
while piercing partition plate 109. First liquid connecting port A
126a and first liquid connecting port B 126b are provided in end
portions of first evaporator liquid header 112 and first condenser
liquid header 119, respectively.
[0087] Similarly, second refrigerant liquid pipe 127 communicates
between second evaporator liquid header 116 and second condenser
liquid header 122 while piercing partition plate 109. In second
evaporator liquid header 116, second liquid connecting port A 127a
is provided in an end portion on the opposite side to first liquid
connecting port A 126a. In second condenser liquid header 122,
second liquid connecting port B 127b is provided in an end portion
on the opposite side to first liquid connecting port B 126b. Second
refrigerant liquid pipe 127 connects second liquid connecting port
A 127a and second liquid connecting port B 127b. Further, first
refrigerant liquid pipe 126 and second refrigerant liquid pipe 127
are configured to have the substantially same length.
[0088] As illustrated in FIG. 13B, heat generating body box housing
refrigeration device 101 includes first refrigerant cycle 128 that
is constructed by first evaporator 114 and first condenser 120 and
second refrigerant cycle 129 that is constructed by second
evaporator 117 and second condenser 123.
[0089] According to the configuration, the lengths of first
refrigerant liquid pipe 126 and second refrigerant liquid pipe 127
are substantially equalized, and the lengths of first refrigerant
steam pipe 124 and second refrigerant steam pipe 125 are
substantially equalized. Therefore, the capability is not
significantly degraded in one of the refrigerant cycles, but the
capability of heat generating body box housing refrigeration device
101 is enhanced as a whole. Additionally, production efficiency is
improved because first refrigerant cycle 128 and second refrigerant
cycle 129 have the same refrigerant amount.
[0090] As illustrated in FIGS. 13A and 13B, in main body box 110,
external air communication ports 151a and 151b are provided in two
side surfaces that are disposed opposite each other in parallel to
the vent direction of condenser 150. Remaining surfaces of main
body box 110 are closed. External air blower 104 is provided so as
to blow the air toward a vent surface of condenser 150. External
air blower 104 is provided in front of or at the back of the vent
surface of condenser 150, which enables external air blower 104 to
blow the air to condenser 150. Internal air blower 103 is provided
in heat generating body box housing 102.
[0091] A running operation of heat generating body box housing
refrigeration device 101 will be described below.
[0092] The heat generated from a heat generating body in heat
generating body box housing 102 heats up the air (hereinafter
referred to as internal air) in heat generating body box housing
102. The high-temperature internal air circulates in heat
generating body box housing 102 by running of internal air blower
103, and passes through evaporator 160. On the other hand,
low-temperature external air passes through condenser 150 by the
running of external air blower 104. As described above, the
refrigerant in a gas state in condenser 150 is refrigerated by the
external air ventilation, and condensed (devolatilized). The
devolatilized refrigerant flows to the lower side of condenser 150,
and flows into evaporator 160 through first refrigerant liquid pipe
126 and second refrigerant liquid pipe 127. The refrigerant in a
liquid state in evaporator 160 is heated up by the internal air
ventilation and vaporized. At this point, the refrigerant deprives
the internal air of the heat to refrigerate the internal air. The
vaporized refrigerant flows into condenser 150 through first
refrigerant steam pipe 124 and second refrigerant steam pipe 125
again.
[0093] At this point, in main body box 110, external air
communication ports 151a and 151b are provided in not the front
surface of the vent surface of condenser 150, but the side surface
parallel to the vent direction. That is, the air that passes in
main body box 110 by the external air natural wind does not pass
through a vent passage of condenser 150, but flows so as to come
into contact with the surface of condenser 150. Accordingly, while
external air blower 104 is stopped, the heat exchange is not
performed too much in condenser 150, and the refrigeration is not
excessively performed in heat generating body box housing
refrigeration device 101. As described above, in the case of the
relatively low temperature in heat generating body box housing 102,
the refrigeration capability of heat generating body box housing
refrigeration device 101 is controlled by stopping external air
blower 104. Therefore, the excessive refrigeration of heat
generating body box housing 102 can be prevented.
[0094] FIG. 16 is an explanatory view illustrating a liquid pipe
partition hole piercing position portion in the heat generating
body box housing refrigeration device of the tenth exemplary
embodiment of the present invention. As illustrated in FIG. 16,
partition plate through-hole 130 for first refrigerant liquid pipe
126 may be made in a region on the opposite side to upper side
portion 132 with respect to lower side portion 131.
[0095] FIG. 17 is an explanatory view illustrating a position of a
steam pipe partition hole piercing portion in the heat generating
body box housing refrigeration device of the tenth exemplary
embodiment of the present invention. As illustrated in FIG. 17,
partition plate through-hole 133 for first refrigerant steam pipe
124 may be made in a region on the same side as upper side portion
132 with respect to lower side portion 131. According to the
configuration, the number of bending times can decrease in first
refrigerant liquid pipe 126 and first refrigerant steam pipe 124,
and an upward gradient can easily be ensured because first
refrigerant liquid pipe 126 and first refrigerant steam pipe 124 do
not pass through a narrow space between partition plate 109 and
condenser 150. As a result, because the refrigerant smoothly flows,
the capability of heat generating body box housing refrigeration
device 101 is enhanced as a whole.
[0096] FIG. 18 is an explanatory view illustrating a gradient of
the refrigerant liquid pipe in the heat generating body box housing
refrigeration device of the tenth exemplary embodiment of the
present invention. As illustrated in FIG. 18, piping gradients of
first refrigerant liquid pipe 126 and second refrigerant liquid
pipe 127 may be set such that a downstream side of a refrigerant
passage becomes a lower direction.
[0097] FIG. 19 is an explanatory view illustrating a gradient of
the refrigerant steam pipe in the heat generating body box housing
refrigeration device of the tenth exemplary embodiment of the
present invention. As illustrated in FIG. 19, the piping gradients
of first refrigerant steam pipe 124 and second refrigerant steam
pipe 125 may be set such that the downstream side of the
refrigerant passage becomes an upper direction.
INDUSTRIAL APPLICABILITY
[0098] The heat generating body box housing refrigeration device of
the present invention can efficiently exert the heat exchange
capability with a simple configuration and flexibly meet the demand
for various heat exchange treatment capabilities, and the heat
generating body box housing refrigeration device also has the
strength against the impact such as the earthquake. Therefore, the
heat generating body box housing refrigeration device is suitably
used as the refrigeration device of the mobile-phone base
station.
REFERENCE MARKS IN THE DRAWINGS
[0099] 1,101 Heat generating body box housing refrigeration device
[0100] 2,102 Heat generating body box housing [0101] 3 Indoor
blower [0102] 4 Outdoor blower [0103] 5,105 High-temperature air
[0104] 6,106 Low-temperature air [0105] 7,107 High-temperature
portion [0106] 8,108 Low-temperature portion [0107] 9,109 Partition
plate [0108] 10,110 Main body box [0109] 11,111 First evaporator
steam header [0110] 12,112 First evaporator liquid header [0111]
13,113 Refrigerant [0112] 14,114 First evaporator [0113] 15,115
Second evaporator steam header [0114] 16,116 Second evaporator
liquid header [0115] 17,117 Second evaporator [0116] 18,118 First
condenser steam header [0117] 19,119 First condenser liquid header
[0118] 20,120 First condenser [0119] 21,121 Second condenser steam
header [0120] 22,122 Second condenser liquid header [0121] 23,123
Second condenser [0122] 24,124 First refrigerant steam pipe [0123]
25,125 Second refrigerant steam pipe [0124] 26,126 First
refrigerant liquid pipe [0125] 27,127 Second refrigerant liquid
pipe [0126] 28,128 First refrigerant cycle [0127] 29,129 Second
refrigerant cycle [0128] 30 Third refrigerant cycle [0129] 31,32
Guide plate [0130] 33 Sealing component [0131] 34,35,36,37 Heat
exchanger plate [0132] 38 Saw-tooth shape [0133] 39 Curved portion
[0134] 41 First joint [0135] 42 Second joint [0136] 43 Third joint
[0137] 44 Fourth joint [0138] 45 Fifth joint [0139] 46 Sixth joint
[0140] 47 Seventh joint [0141] Eighth joint [0142] 103 Internal air
blower [0143] 104 External air blower [0144] 124a First steam
connecting port A [0145] 124b First steam connecting port B [0146]
125a Second steam connecting port A [0147] 125b Second steam
connecting port B [0148] 126a First liquid connecting port A [0149]
126b First liquid connecting port B [0150] 127a Second liquid
connecting port A [0151] 127b Second liquid connecting port B
[0152] 130,133 Partition plate through-hole [0153] 131 Lower side
portion [0154] 132 Upper side portion [0155] 150 Condenser [0156]
160 Evaporator
* * * * *